Shihao Nie, Atian Xie, Jiangping Rui, Jiawei Meng, Fan Wang, Huiqing Feng, Zhijun Ge, Can Wei, Jirong Luo and Jiuyun Cui
{"title":"Fabrication of a superhydrophobic cotton@LDH composite for effective oil adsorption","authors":"Shihao Nie, Atian Xie, Jiangping Rui, Jiawei Meng, Fan Wang, Huiqing Feng, Zhijun Ge, Can Wei, Jirong Luo and Jiuyun Cui","doi":"10.1039/D4NJ03370A","DOIUrl":null,"url":null,"abstract":"<p >The development of superhydrophobic materials with inexpensive cost, and simple preparation processes is crucial for alleviating oil pollution. In this paper, cotton-based composites (cotton@LDH-SA) were prepared by an <em>in situ</em> hydrothermal growth and simple impregnation method. The needle-like Ni–Co LDHs growing on the surface of the cotton fibers formed micro/nano hierarchical structures, and subsequently grafted stearic acid endowing the composite with superwettability. The optimized cotton@LDH-SA possesses a superior superhydrophobicity with a water contact angle of 161.6 ± 2°. The prepared composite adsorbent exhibits excellent oil absorption performance with an adsorption capacity of more than 10 times its own mass. The adsorbent has acceptable reusability, and after 6 cycles of repeated adsorption, the adsorption rate remains at 72.4%. Given the excellent economic and renewable properties of cotton, this composite adsorbent has great potential for application in large-scale production and oil–water separation.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"New Journal of Chemistry","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/nj/d4nj03370a","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The development of superhydrophobic materials with inexpensive cost, and simple preparation processes is crucial for alleviating oil pollution. In this paper, cotton-based composites (cotton@LDH-SA) were prepared by an in situ hydrothermal growth and simple impregnation method. The needle-like Ni–Co LDHs growing on the surface of the cotton fibers formed micro/nano hierarchical structures, and subsequently grafted stearic acid endowing the composite with superwettability. The optimized cotton@LDH-SA possesses a superior superhydrophobicity with a water contact angle of 161.6 ± 2°. The prepared composite adsorbent exhibits excellent oil absorption performance with an adsorption capacity of more than 10 times its own mass. The adsorbent has acceptable reusability, and after 6 cycles of repeated adsorption, the adsorption rate remains at 72.4%. Given the excellent economic and renewable properties of cotton, this composite adsorbent has great potential for application in large-scale production and oil–water separation.